Senior Data Scientist – AdTech

KNOREX

. Develop, maintain, and optimize machine learning models, particularly CTR/CVR prediction.

Posted 11/6/2026full-timeHo Chi Minh City • VietnamSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and optimizing machine learning models, particularly in CTR/CVR prediction, while effectively translating business objectives into actionable ML solutions. Strong analytical skills and experience in collaborating with cross-functional teams to drive measurable business impact.

Highest-signal resume keywords

Machine Learning Model DevelopmentPython ProficiencyExperience in AdTech or FinTechML Algorithms and Feature EngineeringA/B Testing and Model Calibration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Machine LearningModel EvaluationFeature EngineeringOptimizationData AnalysisCTR PredictionCVR PredictionCPA OptimizationLarge-Scale Data ProcessingProduction ML Systems

Soft Skills

Analytical Problem-SolvingGood English CommunicationCollaboration Skills

Tools & Technologies

Scikit-learnXGBoostLightGBMRTBLLMsAI Coding Assistants

Industry Keywords

AdTechFinTechOnline ExperimentationModel CalibrationBusiness KPIs

Tech Stack

Tools & technologies

PythonScikit-Learn

About the role

Key responsibilities & impact

Develop, maintain, and optimize machine learning models, particularly CTR/CVR prediction.
Understand business objectives and translate them into actionable ML solutions that deliver measurable impact.
Analyze advertising performance, investigate anomalies, and identify opportunities for improvement.
Design experiments and evaluate model effectiveness using ML metrics and business KPIs.
Own existing ML projects, ensuring their continuous improvement and reliability in production.
Collaborate with Data Scientists, Engineers, and business teams to drive ML initiatives.

Requirements

What you’ll need

4+ years of experience in Data Science or Machine Learning, preferably with production ML experience.
Experience solving real-world ML problems in AdTech, FinTech, or similar domains, particularly involving incomplete, delayed, or biased labels.
Strong knowledge of ML algorithms, feature engineering, model evaluation, and optimization.
Proficiency in Python and ML frameworks such as Scikit-learn, XGBoost, or LightGBM.
Strong business understanding and analytical problem-solving skills, with the ability to connect ML solutions to business outcomes.
Ability to independently own ML projects, investigate issues, and drive improvements.
Good English communication and collaboration skills.
Experience in RTB, CTR/CVR prediction, or CPA optimization preferred.
Knowledge of A/B testing, model calibration, and online experimentation preferred.
Experience with large-scale data processing and production ML systems preferred.
Familiarity with LLMs and AI coding assistants preferred.

Benefits

Comp & perks

Competitive remuneration package including quarterly bonus and performance review opportunities.
Full participation in mandatory insurance programs in accordance with Vietnamese Labor Law.
Healthcare insurance package and annual health check-up.
Comprehensive benefits scheme such as W3F (Work, Wellbeing, Welfare) Fund for courses, materials, personal health and wellbeing.
Work from home benefits.
Opportunity to influence and drive changes; good ideas are welcomed.
Great learning opportunities with exposure to cutting-edge performance marketing and advertising technology.
Opportunity to work cross-country and with a variety of projects of a different nature.